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Boulder Creek flows at high speed next to a road closed off by debris from days of rain and flooding, at the base of Boulder Canyon, Colo., Friday, Sept. 13, 2013. People in Boulder were ordered to evacuate as water rose to dangerous levels amid a storm system that has been dropping rain for a week. Rescuers struggled to reach dozens of people cut off by flooding in mountain communities, while residents in the Denver area and other areas were warned to stay off flooded streets. (AP Photo/Brennan Linsley)